于多线程tcp服务的对应的客户端代码，主要实现发送命令到服务器然后再出来从服务器端返回的命令-in multithreaded tcp services, the corresponding client code, the main sending commands to the server and then out from the server to return to the order
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001360s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.094328s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001286s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001904s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001277s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003673s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001077s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003463s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014498s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001369s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 304113 [ RunTime:0.001286s ]
